Home / 3,912.51-5,867.67-1,964.19

Finding the Fourth Proportional to 3,912.51, 5,867.67 and 1,964.19

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Solution

The fourth proportional to 3,912.51, 5,867.67 and 1,964.19 is: 2,945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.51 : 5,867.67 = 1,964.19 : x
  2. Step 2: Convert to fraction form
    3,912.51/5,867.67 = 1,964.19/x
  3. Step 3: Cross multiply
    3,912.51x = 5,867.67 × 1,964.19
  4. Step 4: Simplify right side
    3,912.51x = 11,525,218.74
  5. Step 5: Solve for x
    x = 11,525,218.74/3,912.51
  6. Step 6: Final answer
    x = 2,945.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.